Renting a car abroad feels like the default for independent travellers, but it isn't always the smartest move. A private driver often costs about the same once you add up the rental fee, the insurance and the fuel — and you get a local who knows the roads thrown in. So when should you skip the rental counter? Here are the tell-tale signs.

First, distance. If your must-sees are scattered across a big area — think Ireland's far-flung peninsulas or the coastal towns strung along Mexico's Riviera Maya — a driver lets you actually look at the scenery instead of the satnav. Many drivers will also point out lookouts and small sights you'd never find on your own.

Second, the roads themselves. Plenty of countries have narrow, winding lanes shared with buses and trucks (Norway gets a special mention), and cities can serve up tight streets, confusing roundabouts, trams and scarce parking. Third, phone signal: out in the countryside, a driver who knows the area doesn't need to rely on a map app that dies the moment coverage does.

Then there's the left-side question. If traffic keeps left — Ireland, Scotland, England, Wales, India, Australia, Japan, Thailand — you're shifting gears with your wrong hand from the wrong side of the car. Fine in daylight, much trickier at night or in morning traffic.

Being new to a country is reason enough on its own. A driver takes road rules, navigation and parking stress off your plate. In a city like Bangkok, it also means air conditioning and a more secure ride compared with hailing a taxi or tuk-tuk where driving habits are, let's say, relaxed.

Gearheads beware: automatic transmissions are the exception almost everywhere outside the US, and they usually cost extra to rent. Worse, if your rental breaks down, the replacement could well be a manual. If your stick-shift skills are rusty, that's a strong argument for a driver.

Finally, there's the time factor. Even experienced road-trippers lose hours getting turned around in unfamiliar territory. Handing the logistics to someone else protects the actual holiday — the part you paid for.

Who is this for? Anyone planning a driving-heavy itinerary in a country where they've never driven before, especially left-side countries, places with demanding rural roads, or destinations where automatics carry a premium. The takeaway isn't that rentals are bad — it's that the real comparison isn't car rental versus driver on price alone. Factor in insurance, fuel, parking, navigation time and stress, and a private driver is often closer to break-even than you'd expect, with a far better view out of the window.

Practical next step: before booking a rental for your next international trip, price out a private driver for your longest driving days and compare the totals. If the gap is small — or the driver comes out cheaper — the decision practically makes itself.